Means to suspend the structure of a vehicle on its wheels



July 10, 1945. v'. BOGATlC-H 2,379,360

MEANS ,TO SUSPEND THE STRUCTURE OF A VEHICLE ON ITS WHEELS Filed Jan. '21, 1942 Patented; July .10, 1945 1 MEANS T SUSPEND THE s'rnUo'runE on a t VEHICLE 0N rrs WHEELS t I Vincent Bogatich, Detroit, Micln Application January 21, 1942, Serial No.427,671 7 Claims. (o1. 267-41) My invention refers to a new and useful combination and arrangement of levers, links, spring, axle, and frame as the means to suspend a vehicle on its wheels. l I

Forminga part of this specification is a draw- In both embodiments of this invention thus described the distance DD between the two pivots on the upper structure5, is equal to n the distance AA betweenthe two pivots on axle 3. l i

ing in threeembodimerits illustrating this com bination and arrangement.

The object of this invention is major and importantlmprovement of vehicular transportation,

namely, to accomplish continuous counter-pois ing and counterbalancing of a vehicle, While in a a traveling motion. i

It is further the object of this invention to maintain equal gravity pressure on. opposite wheels, coupled to the same axle, while at the 5 same time instantaneously and equally distributing added pressure caused by shock encountered by traveling over uneven road surface.

With the foregoing and other objects in View, I have devised the construction illustrated in the accompanying drawing in which Figure l is a front elevation of one form'of the invention; 3

Figure 2 is a front elevation of another form, and i it Figure 3 is a front elevation ofstill another modification.

In the embodiment shown in Figure 1 the ends of transverse spring I, are pivoted at B to the lower ends of levers 2, which are fulcrumed on pivots A attached to the axle 3. These levers 2, at their opposite ends are pivoted at C to links I In both embodiments of this invention thus de-; scribed the midpoint Y of the transversesprin I, is secured to the middle of the adjacent'transverse member of the frame 5, half way between pivots to which links 4are attached i w In the construction shown in Figure 3, the.

mechanism is inverted so that the midpoint Y oi the spring I isfastened to the axle 3. The levers 2 are attached to the bodymember 5 while the links 4 are attached to the axle. 3 at points DD.

The fulcrumsof the levers 2 are indicated at AA while the ends of the spring I are attached to the levers at pointsBB. The levers are attached to the links at points CC, and the aforementioned dimensional relations apply to FigureB as-well as Figures 1 and 2. I t

1 The utilization of two halves instead of a single transversespring in either embodiment of this invention is optional and when so assembled constitutes the same improvement onwhich I ant hereby claiming Letters Patent.

The mode of operation of this invention is that any compression of the above described combina-- tion and arrangement caused by the agitation of i one wheel will be expanded to the opposite side to bear on the other wheel, such expansion counteracting any unbalancing from a horizontal or level equilibrium, by reversing the direction of motion 4, which in turn at their other ends D are pivoted to the frame or upperstructure 5.

In the embodiment shown in FigureZ the ends of transverse spring I, are pivoted atfulcrums B of levers 2, which at one end are pivoted at A to axle 3, and at the other ends C are pivoted to links 4, which at their other ends D are pivoted to the frame or upperstructure 5.

with leverage through the expansion or contraction of the spring against the suspended weight 35. i

of the vehicle. e Assuming that the right-hand end of the memher 3 in Figure 2 is raisedby an elevation onthe road, the internal angle between the right-hand I ,members 2 and 4 becomes smaller and the inter- All mention herein of distance from pivots is from the centers of pivots. a

In both embodiments of this invention thus described the distance AB between the pivots on 4 lovers}, to which axle 3 and spring I are attached, is determined by the result obtained after distance XA measured, from the midpoint X of axle 3 to the pivot A, joining axle 3 to lever 2, is I subtracted from a length YB of spring I measured from its midpoint Y to the pivot B at its end.

In both embodiments :of this invention thus described-the distance CD between the end pivots on links 4 is equal to thejdistance AC between the pivots on lever 2 whichattach to axle 3 and links 4.

nal angle between-- the left-hand members 2 and 4 slightly larger. The two points DD move equal.

distances with respect to the ground. While the spring flexes at both sides of the mid-point Y,

the middle arearemains in constant relation to n l the level of the points DD, with the result that the structure 5 carrying the points DD remains horizontal. I 1

No additional means is required to hold the body 5 horizontal. The maintenance of the horizontal position is a function ora result of the mechanism describedher'ein- Th mechanism,

being symmetrical, maintains the body 5 'horizontal, obviously, while the vehicle is onlevel ground; The nature for the suspension is such that this original horizontal position is notdis.

turbed by altering the angle of elevation of the axle 3.

Having thus described my invention, what I claim and desire to secure by. Letters Patent is:

1. In a suspension for a vehicle having an ax e member and a body member, a spring having its midpoint fastened to one of said members, a pair of links pivoted directly to the same member at link-member pivot points within compass of the ends of said-spring and equidistant in opposite directions from the midpoint of said spring; a pair of levers pivoted directly to the other member at lever-member pivot points spaced apart substantially the same distance as said link-momber pivot points, and to said links at lever-link:

point to the spring-lever pivot point on each lever being substantially equal to the distended halfspring length less" half the distance between the two lever member pivot points, the distance be tween the lever-link pivot point and the 1inkmember pivot point on each link being substantially equal to the distance between the leverme'mber pivot point and the lever-link pivot point on each lever, the distance between the twolinkmember pivot points being substantially equal to the distance between the twolever-member pivot points, whereby said body member retains a subposed between the springdever and lever-link pivot points thereof.

5. The invention defined in claim 1, wherein the spring-lever pivot point of each lever is disposed between the lever-member and lever-link pivot v points thereof.

6. The invention defined inclaim 1, wherein said spring is fastened to the body member and said levers are pivoted to the axle member, the lever-member pivot point of each lever being dis-- posed between the spring-lever and lever-link pivot points thereof.

7. The invention defined in claim l, wherein said spring is fastened to the body member and said levers are pivoted to the axle member, the

, spring-lever pivot point of each lever being disposed between the levermember and lever-link pivot points thereof.

. VINCENT BOGATIC-H. 

